eriochrome blue black R

例句：

1. 1.The artist used eriochrome to create a striking blue-black color on the canvas.
   这位艺术家使用蓝黑色染料在画布上创造出引人注目的蓝色。
2. 2.The company's new product uses eriochrome as its main coloring agent.
   该公司的新产品主要采用蓝黑色染料作为着色剂。
3. 3. The eriochrome was applied evenly across the entire surface of the fabric.
   蓝黑色染料均匀涂抹在整个织物表面。